Finding the Fourth Proportional to 20,137.47, 30,203.89 and 5,347.55

Step by Step Solution

1. Step 1: Write the proportion equation
   20,137.47 : 30,203.89 = 5,347.55 : x
2. Step 2: Convert to fraction form
   20,137.47/30,203.89 = 5,347.55/x
3. Step 3: Cross multiply
   20,137.47x = 30,203.89 × 5,347.55
4. Step 4: Simplify right side
   20,137.47x = 161,516,734.29
5. Step 5: Solve for x
   x = 161,516,734.29/20,137.47
6. Step 6: Final answer
   x = 8,020.71